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A C550 flight crew experiences a runway excursion when the anti-skid system fails and the aircraft goes 3 ft off the end of runway 20L at pdk, GA.
| Attributes | |
| ACN | 457339 |
| Time | |
| Date | 199912 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdk.airport |
| State Reference | GA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Turbulence Rain |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Citation II S2/Bravo |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 900 |
| ASRS Report | 457339 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 550 flight time type : 100 |
| ASRS Report | 457340 |
| Events | |
| Anomaly | aircraft equipment problem : critical excursion : runway ground encounters other non adherence : far other anomaly |
| Independent Detector | aircraft equipment other aircraft equipment : anti skid light other flight crewa other flight crewb |
| Resolutory Action | none taken : unable |
| Consequence | other Other |
| Supplementary | |
| Problem Areas | Environmental Factor ATC Human Performance Aircraft Weather Flight Crew Human Performance Airport |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We had a normal flight with an ILS approach runway 20L to atlanta-dekalb-peachtree (pdk) airport. We broke out of the clouds at 250 ft AGL and made a normal touchdown on runway 20L. The touchdown spot was normal and the initial stopping distance was normal. The tower instructed us to make a right turn at the end without delay. I added a little power to increase our speed to approximately 20 KTS. At what I judged to be a normal slow down point to make the turn at the end with a wet runway, I decreased power to idle and applied brakes. As I applied brakes I noticed the anti-skid fail light illuminate then go out. A very short time later (3-5 seconds) wile braking was still applied, the tires started to skid. I noticed the anti-skid fail light was illuminated solid. I elected to try and keep the aircraft straight ahead rather than attempt a turn. The aircraft came to a complete stop with the nose gear approximately 3 ft off the end of the runway. I notified the tower and shut the engines down. There was no injuries, no damage to the aircraft and no damage to the airport. Maintenance found a faulty anti-skid pump.
Original NASA ASRS Text
Title: A C550 FLC EXPERIENCES A RWY EXCURSION WHEN THE ANTI-SKID SYS FAILS AND THE ACFT GOES 3 FT OFF THE END OF RWY 20L AT PDK, GA.
Narrative: WE HAD A NORMAL FLT WITH AN ILS APCH RWY 20L TO ATLANTA-DEKALB-PEACHTREE (PDK) ARPT. WE BROKE OUT OF THE CLOUDS AT 250 FT AGL AND MADE A NORMAL TOUCHDOWN ON RWY 20L. THE TOUCHDOWN SPOT WAS NORMAL AND THE INITIAL STOPPING DISTANCE WAS NORMAL. THE TWR INSTRUCTED US TO MAKE A R TURN AT THE END WITHOUT DELAY. I ADDED A LITTLE PWR TO INCREASE OUR SPD TO APPROX 20 KTS. AT WHAT I JUDGED TO BE A NORMAL SLOW DOWN POINT TO MAKE THE TURN AT THE END WITH A WET RWY, I DECREASED PWR TO IDLE AND APPLIED BRAKES. AS I APPLIED BRAKES I NOTICED THE ANTI-SKID FAIL LIGHT ILLUMINATE THEN GO OUT. A VERY SHORT TIME LATER (3-5 SECONDS) WILE BRAKING WAS STILL APPLIED, THE TIRES STARTED TO SKID. I NOTICED THE ANTI-SKID FAIL LIGHT WAS ILLUMINATED SOLID. I ELECTED TO TRY AND KEEP THE ACFT STRAIGHT AHEAD RATHER THAN ATTEMPT A TURN. THE ACFT CAME TO A COMPLETE STOP WITH THE NOSE GEAR APPROX 3 FT OFF THE END OF THE RWY. I NOTIFIED THE TWR AND SHUT THE ENGS DOWN. THERE WAS NO INJURIES, NO DAMAGE TO THE ACFT AND NO DAMAGE TO THE ARPT. MAINT FOUND A FAULTY ANTI-SKID PUMP.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.